Parallel connecting rod clamping jaw mechanism

Abstract

The utility model relates to the technical field of wire harness welding, in particular to a parallel connecting rod clamping jaw mechanism which comprises a base, an upper clamping jaw and a lower clamping jaw, a power source is installed on the base, the driving end of the power source is connected with a sliding seat, and the sliding seat is connected with the base in a sliding mode and can vertically slide along the base. A connecting rod is rotationally connected to one side of the sliding seat, a lower clamping jaw is installed on the other side of the sliding seat, the upper clamping jaw is rotationally installed on the base through a parallel connecting rod mechanism, and the parallel connecting rod mechanism is rotationally connected with the connecting rod. When the clamping jaws are opened, the sliding seat drives the lower clamping jaw to descend and cannot interfere with a wire rod, and meanwhile the parallel connecting rod mechanism drives the upper clamping jaw to retract in parallel, so that the upper portion of the lower clamping jaw is not shielded, feeding and discharging cannot be affected, and the phenomenon of wire hanging cannot occur; namely, the lower clamping jaw is higher than the opened lower clamping jaw, so that the lower clamping jaw can be conveniently butted with other mechanisms on the line body.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness welding, and particularly relates to a parallel link jaw mechanism. Background Art

[0002] The parallel link jaw mechanism is a mechanism developed for wire harness handling. In previous mechanisms, to open the jaws, a jaw cylinder or a single-sided pressing method was used. In this way, the upper and lower spaces could not be avoided, which affected the automatic loading and unloading. Or multiple power sources were required to complete this action, which not only increased the cost but also made the structure complex and the stability poor. The parallel link mechanism solves the above problems. One power source can complete multiple actions, with a simple structure and high efficiency, and can adapt to the handling of various thin wires, and is widely used in the automotive, wire harness, household appliance, and 3C industries.

[0003] The jaws of the parallel link mechanism generally include a power source (cylinder) and a parallel link mechanism. During operation, the wire harness is placed on the jaws. The link mechanism is powered by a servo drive or a cylinder. When clamping is required, the two jaws are pressed together by pushing upward through the servo drive or the cylinder. When opening, the two jaws are pulled back to the origin by the servo drive or the cylinder.

[0004] Currently, a new problem has occurred during wire harness handling. When the lower jaw opens, there is no allowable obstruction above it, otherwise it will affect the loading and unloading or cause wire hanging. At the same time, the lower jaw needs to sink so that it does not interfere with the wire during the reciprocating motion. When closed, the lower jaw should be higher than when it is open to facilitate docking with other mechanisms on the wire body. Summary of the Utility Model

[0005] The utility model solves the problems in the related art and provides a parallel link jaw mechanism. With one power source, two jaws can be driven to achieve multi-dimensional movement. When the jaws open, the power source drives the sliding seat to drive the lower jaw downward, so that the lower jaw will not interfere with the wire during the reciprocating motion. The link will drive the parallel link mechanism to rotate in the opposite direction, synchronously driving the upper jaw to retract parallel to the rear of the link, so that there is no obstruction above the lower jaw, which will not affect the loading and unloading and will not cause wire hanging. When the jaws close, the power source drives the sliding seat upward to drive the lower jaw to lift upward, that is, the lower jaw is higher than when it is open, which is convenient for docking with other mechanisms on the wire body.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions: A parallel link gripper mechanism, comprising an upper gripper, a lower gripper and a power source. The power source is installed on a base, and a sliding seat is connected to the driving end of the power source. The sliding seat is slidably connected to the base and can slide vertically along the base. A link is rotatably connected to one side of the sliding seat, and the lower gripper is installed on the other side. The upper gripper is rotatably installed on the base through a parallel link mechanism, and the parallel link mechanism is rotatably connected to the link.

[0007] As a preferred solution, the base comprises a horizontal plate and a vertical plate connected perpendicularly. The power source is installed on the horizontal plate. A chute is provided on the sliding seat, and the vertical plate is slidably installed in the chute.

[0008] As a preferred solution, the power source is a cylinder. The piston rod of the cylinder is connected to a T-shaped block. A T-shaped groove matching the T-shaped block is provided on the sliding seat, and the piston rod is connected to the T-shaped groove on the sliding seat through the T-shaped block.

[0009] As a preferred solution, the parallel link mechanism comprises a first parallel link and a second parallel link arranged in parallel. The first parallel link is rotatably connected to the link, the base and the upper gripper respectively through shafts. The second parallel link is rotatably connected to the base and the upper gripper respectively.

[0010] As a preferred solution, a first installation groove is provided on the upper gripper. The first end of the first parallel link is installed on the vertical plate through a third shaft, and the second end of the first parallel link is installed in the first installation groove through a fourth shaft. One end of the second parallel link is installed in the first installation groove of the upper gripper through a first shaft, and the other end of the second parallel link is installed on the vertical plate through a second shaft.

[0011] As a preferred solution, a second installation groove is provided on one side of the sliding seat. One end of the link is installed in the second installation groove through a sixth shaft, and the other end is connected to the third end of the first parallel link through a fifth shaft.

[0012] As a preferred solution, a clamping groove is provided on the lower gripper. During clamping, the upper gripper is clamped into the clamping groove of the lower gripper.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] (1) A power source can drive two jaws to achieve multi-dimensional movement. When the jaws open, the power source drives the sliding seat, which in turn drives the lower jaw downward. When the lower jaw makes a reciprocating motion, it will not interfere with the wire. The connecting rod will drive the parallel link mechanism to rotate in the opposite direction, synchronously driving the upper jaw to retract parallel to the rear of the connecting rod, so that there is no obstruction above the lower jaw, which will not affect the loading and unloading, and there will be no wire hanging phenomenon. When the jaws close, the power source pushes upward to drive the sliding seat to drive the lower jaw to lift upward, that is, the lower jaw is higher than when it is open, which is convenient for other mechanisms on the wire body to dock.

[0015] (2) In the open and closed states, the upper jaw and the lower jaw always remain horizontal, which not only saves space in the height direction but also avoids the situation where the root of the jaw presses the product and the end of the jaw cannot press tightly when pressing the product.

[0016] (3) This mechanism has a simple structure, is easy to use, small and compact, convenient to be integrated and used on an automated production line, and is easy to install, debug, and has high stability.

[0017] (4) This mechanism only requires one power source, saving costs. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the upper and lower jaws of the present utility model when they are closed;

[0019] Figure 2 is a schematic structural diagram of the upper and lower jaws of the present utility model when they are closed;

[0020] Figure 3 is a schematic structural diagram of the upper and lower jaws of the present utility model when they are open;

[0021] Figure 4 is a schematic structural diagram of the upper and lower jaws of the present utility model when they are open.

[0022] In the figure:

[0023] 1. Upper jaw, 2. Lower jaw, 3. Power source, 4. First parallel link, 5. Second parallel link, 6. Connecting rod, 7. Sliding seat, 8. Base, 81. Horizontal plate, 82. Vertical plate;

[0024] a. First axis, b. Second axis, c. Third axis, d. Fourth axis, e. Fifth axis, f. Sixth axis. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the scope of protection of the present utility model; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0030] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0031] like Figures 1 to 4 As shown, a parallel-link clamp mechanism comprises an upper clamp 1, a lower clamp 2 and a power source 3, the power source 3 is mounted on a base 8, a driving end of the power source 3 is connected to a sliding seat 7, the sliding seat 7 is slidably connected to the base 8 and the sliding seat 7 can slide vertically along the base 8; one side of the sliding seat 7 is rotatably connected to a connecting rod 6, and the other side is mounted with a lower clamp 2, the upper clamp 1 is rotatably mounted on the base 8 through a parallel-link mechanism and the parallel-link mechanism is rotatably connected to the connecting rod 6, when the power source 3 is lifted upward, the sliding seat 7 will drive the lower clamp 2 to lift upward, the connecting rod 6 will drive the parallel-link mechanism to rotate, and synchronously drive the upper clamp 1 to press parallel to the lower clamp 2 to complete the action of clamping the product, such as Figure 1 and 2 As shown; when the power source 3 is pulled down, the sliding seat 7 will drive the lower clamping jaw 2 to move downward, and the connecting rod 6 will drive the parallel connecting rod mechanism to rotate in the opposite direction, and simultaneously drive the upper clamping jaw 1 to be retracted parallel to the rear of the connecting rod 6, completing the action of separating from the product, such as Figure 3 and 4 shown.

[0032] In one embodiment, the base 8 includes a horizontal plate 81 and a vertical plate 82 connected vertically, the power source 3 is installed on the horizontal plate 81, a sliding groove is opened on the sliding seat 7, and the vertical plate 82 is slidably installed in the sliding groove. When the power source 3 is lifted upward, the sliding seat 7 can slide upward along the vertical plate 82.

[0033] In one embodiment, the power source 3 is optional but not limited to a cylinder. The piston rod of the cylinder is connected to the T-shaped block. A T-shaped groove matching the T-shaped block is formed on the sliding seat 7. The piston rod is connected to the T-shaped groove on the sliding seat 7 through the T-shaped block. When the piston rod extends upward, the sliding seat 7 is jacked upward through the T-shaped block.

[0034] In one embodiment, the parallel link mechanism includes a first parallel link 4 and a second parallel link 5 arranged in parallel. The first parallel link 4 is respectively rotatably connected to the link 6, the base 8, and the upper jaw 1 through shafts; the second parallel link 5 is respectively rotatably connected to the base 8 and the upper jaw 1. Specifically, a first installation groove is formed on the upper jaw 1. The first end of the first parallel link 4 is installed on the vertical plate 82 through the third shaft c, and the second end of the first parallel link 4 is installed in the first installation groove through the fourth shaft d; one end of the second parallel link 5 is installed in the first installation groove of the upper jaw 1 through the first shaft a, and the other end of the second parallel link 5 is installed on the vertical plate 82 through the second shaft b; a second installation groove is formed on one side of the sliding seat 7. One end of the link 6 is installed in the second installation groove through the sixth shaft f, and the other end is connected to the third end of the first parallel link 4 through the fifth shaft e. Then, as Figure 1 and 2 shown, when the power source 3 jacks upward, the first parallel link 4 and the second parallel link 5 respectively rotate toward the side close to the lower jaw 2 around the fourth shaft d and the third shaft c, so that the upper jaw 1 presses on the lower jaw 2 in parallel. Specifically, a clamping groove is formed on the lower jaw 2. During clamping, the upper jaw 1 is inserted into the clamping groove of the lower jaw 2 to complete the action of clamping the product; as Figure 3 and 4 shown, when the power source 3 retracts downward, the first parallel link 4 and the second parallel link 5 respectively rotate toward the side away from the lower jaw 2 around the fourth shaft d and the third shaft c, so that the upper jaw 1 is retracted in parallel behind the link 6 to complete the action of disengaging from the product.

[0035] The above is the preferred embodiment of the present utility model. Those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiment. Therefore, the present utility model is not limited to the above specific embodiments. Any obvious improvements, substitutions, or variations made by those skilled in the art based on the present utility model fall within the protection scope of the present utility model.

Claims

1. A parallel link clamp mechanism, characterized in that: The invention comprises an upper clamping jaw (1), a lower clamping jaw (2) and a power source (3), wherein the power source (3) is mounted on a base (8) and a driving end of the power source (3) is connected to a sliding seat (7), the sliding seat (7) is slidably connected to the base (8) and the sliding seat (7) can slide vertically along the base (8); one side of the sliding seat (7) is rotatably connected to a connecting rod (6), and the other side is mounted with the lower clamping jaw (2); the upper clamping jaw (1) is rotatably mounted on the base (8) through a parallel connecting rod mechanism, and the parallel connecting rod mechanism is rotatably connected to the connecting rod (6).

2. The parallel linkage clamp mechanism according to claim 1, characterized in that: The base (8) comprises a transverse plate (81) and a vertical plate (82) connected vertically, the power source (3) is mounted on the transverse plate (81), a sliding groove is provided on the sliding seat (7), and the vertical plate (82) is slidably mounted in the sliding groove.

3. The parallel linkage clamp mechanism according to claim 1, characterized in that: The power source (3) is a cylinder, the piston rod of the cylinder is connected to a T-block, a T-slot matching the T-block is provided on the sliding seat (7), and the piston rod is connected to the T-slot on the sliding seat (7) via the T-block.

4. The parallel linkage clamp mechanism according to claim 1, characterized in that: The parallel link mechanism comprises a first parallel link (4) and a second parallel link (5) which are arranged in parallel, wherein the first parallel link (4) is rotatably connected to a link (6), a base (8) and an upper clamping jaw (1) via a shaft; and the second parallel link (5) is rotatably connected to the base (8) and the upper clamping jaw (1) respectively.

5. The parallel linkage clamp mechanism according to claim 4, characterized in that: The upper clamping jaw (1) is provided with a first mounting groove, the first end of the first parallel link (4) is mounted on the vertical plate (82) via a third axis (c), and the second end of the first parallel link (4) is mounted in the first mounting groove via a fourth axis (d); one end of the second parallel link (5) is mounted in the first mounting groove of the upper clamping jaw (1) via a first axis (a), and the other end of the second parallel link (5) is mounted on the vertical plate (82) via a second axis (b).

6. The parallel linkage clamp mechanism according to claim 4, characterized in that: A second mounting groove is provided on one side of the sliding seat (7); one end of the connecting rod (6) is mounted in the second mounting groove via a sixth shaft (f); and the other end is connected to the third end of the first parallel connecting rod (4) via a fifth shaft (e).

7. The parallel linkage clamp mechanism according to claim 1, characterized in that: The lower clamping jaw (2) is provided with a slot, and when clamping, the upper clamping jaw (1) is clamped into the slot of the lower clamping jaw (2).

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